Shimano
Tiagra 4700 Left Crank Arm
Best replacement part for 10-speed road bike drivetrain maintenance.
Keep your road bike performing at its best with the Shimano Tiagra 4700 Left Crank Arm. This genuine Shimano component is built for reliable performance and smooth operation, integrating seamlessly with 10-speed drivetrains. Its robust construction ensures consistent power transfer, making it an essential replacement part for maintaining your bicycle's efficiency. Experience dependable cycling with this vital piece of your drivetrain, designed to deliver a superior riding experience on every journey.
$59.99
More Tiagra Options
Owner Satisfaction
4.6
/ 5
Category Rank
417
/ 2100
#417 in Components
Price vs Category Average
-42%
Below average
Component Type
Left Crank Arm
/ Left Crank Arm
Who it's for
- Cyclists seeking efficient power transfer and simple maintenance
- Commuters and road riders prioritizing long-term durability
- Owners wanting a seamless, matching aesthetic for their bike
Who should skip it
- Weight-conscious racers chasing marginal gains
- Cyclists mixing components from different series or brands
- Data-driven athletes requiring integrated power measurement
Performance breakdown
Power Transfer Efficiency
Rigid construction ensures consistent energy delivery through every pedal stroke.
Drivetrain Compatibility
Designed specifically for seamless integration with 10-speed Tiagra systems.
Build Durability
Robust materials withstand the rigors of daily road cycling demands.
Installation Ease
Standardized design makes for a straightforward, hassle-free component swap.
Weight Optimization
Balances structural integrity with a weight profile suited for endurance riding.
Component Reliability
Genuine Shimano engineering provides long-term peace of mind on the road.
Key Specs
Component Type
Left Crank Arm
Groupset Compatibility
Shimano Tiagra 4700
Drivetrain Compatibility
10-speed
Model Number
Y1RC98020
Features
- Reliable Tiagra drivetrain replacement
- Ensures smooth cycling performance
- Durable road cycling design
- Compatible with 10-speed systems
- Genuine Shimano quality
What customers say
Cyclists highly value the Shimano Tiagra 4700 Left Crank Arm for its exceptional value, balancing performance and longevity. Users consistently praise its robust construction and dependable operation, noting it upholds Shimano's engineering standards even in a mid-range component. The seamless integration with other Tiagra parts ensures smooth power transfer, and installation is generally straightforward. Durability is a recurring highlight, making it a trustworthy choice for daily riding and training. While it lacks the premium features of higher tiers, customers recognize the Tiagra 4700 offers a perfect blend of reliability and affordability, solidifying its reputation as an excellent replacement or upgrade.
Know before you buy
This specific model is designed for the Tiagra 4700 series. While it may physically fit other Shimano 10-speed cranksets, we recommend sticking to the 4700 series to ensure proper alignment and performance.
No, this is the left crank arm only. You will need to reuse your existing crank arm fixing bolts or purchase them separately.
No, this component is specifically engineered for 10-speed drivetrains. Using it with an 11-speed system will likely result in poor shifting performance and potential drivetrain incompatibility.
You will need a 5mm hex wrench to tighten the pinch bolts and a Shimano crank installation tool (TL-FC16 or similar) to secure the plastic preload cap.
Check the back of your current left crank arm for the model number. If it is marked 'FC-4700', this is the correct replacement part.
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$60